6520992 has 24 divisors (see below), whose sum is σ = 17117856. Its totient is φ = 2173632.

The previous prime is 6520981. The next prime is 6520999. The reversal of 6520992 is 2990256.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (6520999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33868 + ... + 34059.

It is an arithmetic number, because the mean of its divisors is an integer number (713244).

Almost surely, 2^6520992 is an apocalyptic number.

It is an amenable number.

6520992 is an abundant number, since it is smaller than the sum of its proper divisors (10596864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6520992 is a wasteful number, since it uses less digits than its factorization.

6520992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67940 (or 67932 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 6520992 is about 2553.6233081643. The cubic root of 6520992 is about 186.8262467571.

The spelling of 6520992 in words is "six million, five hundred twenty thousand, nine hundred ninety-two".